lol no dont worry its a pleasure to answer the forum , stand for questiosn and for knowledge exchange .....
yes in radiant you can edit your prefererences wait i will take a pic of mine ....the best to work i think
you will fint that menu in edit>preferences
Yep, just click a few options and see what's changed, simple as that. As for your question on combining textures it's the 3-button mouse part you need.
This will be the effect;
agentmad007 wrote:if you have a three mouse button ===> select the wall N?2 (where you want to apply the texture) then clik on the wall N?1 and IN THE 3D VIEW with the middle button of your mouse..